In Jainism, “Sarvarthsiddhi” (more commonly “Sarvārthasiddhi” / “Sarvārthasiddhi”) is mainly known as:

1. The highest Anuttara heaven (celestial realm)
2. A state where all (sarva) purposes/aims (artha) are attained (siddhi)

Since you wrote “geography and life”, I’ll explain it as a cosmological place and the type of life there.

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1. Where is Sarvārthasiddhi in Jain cosmology? (Geography)

In the structure of the universe (loka):

• The universe has three main parts:

- Adho‑loka – lower worlds (hells) - Madhya‑loka – middle world (humans, animals, plants, etc.) - Ūrdhva‑loka – upper worlds (heavens and finally Siddha‑śilā)

Within Ūrdhva‑loka (upper world):

1. First come the Kalpa heavens (like Saudharma, Īśāna, Sanatkumāra, etc.).
2. Above them are more refined realms (Graiveyaka, Anudisha – details vary in lists).
3. At the very top of the heavenly region are the Anuttara heavens (Anuttara‑vimāna).

Sarvārthasiddhi is:

• The highest and last Anuttara heaven – the topmost possible birth within saṃsāra.
• Just below Siddha‑śilā, the abode of liberated souls.

So, “geographically” in Jain cosmology:

• Hell regions (below)
• Human and other middle worlds
• Many levels of heavens
• Topmost Anuttara heaven: Sarvārthasiddhi
• Above that, Siddha‑śilā (where only liberated souls reside).

Both Digambar and Śvetāmbara accept Sarvārthasiddhi as the supreme Anuttara heaven, though exact lists/names and counts of higher heavens can differ slightly in wording.

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2. What kind of life is there in Sarvārthasiddhi?

The beings there are called Anuttara Devas (highest class of heavenly beings).

Spiritual status

• They are very spiritually advanced, not ordinary pleasure‑seeking devas.
• They have:

- Right faith (samyak‑darśan) - Very pure conduct from their previous human birth - Very little passion compared to lower heavens

• Jain tradition says:

- A soul born in the Anuttara heavens will normally take only one more human birth after that and then attain moksha (if it continues on the right path). - So Sarvārthasiddhi is often viewed as the last stop before liberation.

Type of enjoyment

• They have extremely subtle, refined bodies.
• Their pleasures are not gross sensual pleasures like lower heavens.
• Their happiness is:

- Very long‑lasting - Very peaceful and inward - Almost like a preparation ground for final liberation

Lifespan

• Life span there is enormous compared to humans and even compared to lower devas.
• Exact numbers (in sāgaropama / palyopama terms) vary by text, but all agree:

- It is one of the longest possible lives in saṃsāra.

• Still, it is not eternal – when that lifespan ends, the soul will take a final human birth, where it can attain keval‑jñān and then siddhahood.

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3. Why is it called “Sarvārthasiddhi”?

Meaning of the term:

• Sarva = all
• Artha = aims, purposes, spiritual goals
• Siddhi = accomplishment, perfection

So Sarvārthasiddhi means:

• “That realm where all purposes are accomplished”
• Or: a birth where all remaining spiritual goals are practically ensured, because in the next human birth that soul is expected to attain moksha.

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4. Any Digambar vs. Śvetāmbara difference?

• Agreement:

- Both accept: - The existence of highest Anuttara heavens. - Sarvārthasiddhi (or a very close equivalent name) as the topmost such realm. - Souls born here are very close to liberation.

• Differences:

- The exact list and names of all higher heavens (Graiveyaka / Anuttara etc.) can differ slightly in spelling, order, or count in some texts. - But the core idea of Sarvārthasiddhi as the highest heaven before Siddha‑śilā is shared.

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In short:

• Geography: Sarvārthasiddhi is the highest heavenly realm in the upper world, directly below Siddha‑śilā.
• Life: Souls born there are extremely advanced, live a very long, blissful, subtle life, and are normally destined to achieve liberation in their next human birth.